About Color

Summary

What Color Is?

Color Temperature

Exposure

Color Depth or Bit Depth

Resolution

When you shopping on line, almost always you will find the color of the real item you received has some color difference to the pictures the seller show you. And all the seller will indicate that there are many reasons will affect the color, maybe you think it is just the seller's tricks, but unfortunately, after you read this article, you will know it is true and can't be avoided currently.

• RGB is additive colors system, stand for three primary color light red, green and blue, these three colors combined together in various ways to create a broad range of colors. Additive color system means the color light directly received by your eyes, your computer, TV, mobile phone all uses this system.
• CMYK is a subtractive colors system, stands for cyan, magenta, yellow, and black. It uses dyes, inks, pigments, or filters to absorb some wavelengths of light and not others. When a pigment or ink is added, wavelengths are absorbed or "subtracted" from white light, so light of another color reaches your eyes. It used on printing, painting etc.

So, no matter RGB colors system or CMYK colors system, both is the reflect of different colors light to your eyes.

Different light source has different color temperature, Any item under different light the color you see is different.

So you need to adjust the camera white balance under different light when take pictures.

Decides the amount of lights goes to your camera, you can adjust Shutter speed, Aperture and ISO to change the exposure.

Color depth means the maximum number of colors can display on one pixel. From below picture you can see the difference between different depth.

Most screen you can set to 32 bits, it actually same to 10 bits, 32 bits is through red, green, blue three channel, 10 bits is for single channel.

From below picture you can see the difference on different color depth

The resolution means the number of pixel on your screen, the screen resolution won’t affect the colors on one pixel. But it will affect the color density you see on the screen, so you will find the color difference on different resolution screen.

Except above factors, actually your eye also can cheat you on colors, as you know, some people blind to colors, your eyes structure will change with your age, so the color you see also will change, its funny, but it is the fact.

Color is a another headache problem for most seller, we tried our best to use the best camera to take photos, then use photoshops to adjust the colors as close as possible, but many factors is out of our control. So please be careful if the color difference is significant to you.

SisterSilk
Apr 08 2022